圈绘制看起来像在地图上的椭圆形

问题描述

你好我想在地图上创建圆形。对于我使用地面覆盖项目。我试着画圆形形状绘制xml文件。首先，我尝试了正常的活动布局，它让我完美的圆形。同样的事情我试着画在地图上，它看起来像椭圆形。我的code的绘制和布局如下：

Hi I am trying create circle shape on map. For that i am using ground overlay item. I tried draw circle shape with drawable xml file. First I tried in normal activity layout and it shows me perfect circle shape. same thing I tried to draw on map it looks like oval shape. My code for drawable and layout is as follows :

<?xml version="1.0" encoding="utf-8"?>
<shape
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval">

   <solid 
       android:color="#666666"/>

   <size 
       android:width="120dp"
    android:height="120dp"/>
</shape>

和我的布局文件：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <RelativeLayout 
    android:id="@+id/circleLay"
    android:layout_height="100dp"
    android:layout_width="100dp"
    android:layout_centerInParent="true"
    android:background="@drawable/circle">
    </RelativeLayout>

</RelativeLayout>

我试图创建地面叠加的项目如下：

I tried to create ground overlay item as follows :

LatLng NEWARK = new LatLng(0, 0);
        View markerView = ((LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(R.layout.custom_marker_layout, null);
        GroundOverlayOptions newarkMap = new GroundOverlayOptions()
                .image(BitmapDescriptorFactory.fromBitmap(createDrawableFromView(this, markerView)))
                .position(NEWARK, 860000f, 650000f);
GroundOverlay imageOverlay = googleMap.addGroundOverlay(newarkMap);

我试过的活动，显示我的圈子，但在地图显示它椭圆形，没有圆形同样的事情。如何做到这一点？需要帮忙。谢谢你。

same thing I tried for activity which shows me circle but for map it showing oval shape not circle shape. How to do this? Need Help. Thank you.

推荐答案

您可以简单地添加一个圈直接，而是采用了的GroundOverlay ：

You could simply add a Circle directly, instead of using a GroundOverlay:

Circle circle = googleMap.addCircle(new CircleOptions()
     .center(new LatLng(40.740234,-74.171505))
     .radius(10000)
     .strokeColor(Color.GRAY)
     .fillColor(Color.GRAY));

这篇关于圈绘制看起来像在地图上的椭圆形的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！